#include <iostream>
#include <string>
#include <pthread.h>
#include <unistd.h>

pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;

void *active(void *args)
{
    std::string name = static_cast<const char*>(args);
    while(true)
    {
        pthread_mutex_lock(&mutex);
        //没有对于资源是否就绪的判定
        pthread_cond_wait(&cond, &mutex);
        //printf("%s is active!\n", name.c_str());
        printf("我是线程%s\n", name.c_str());
        pthread_mutex_unlock(&mutex);
    }
}


int main()
{
    pthread_t tid1, tid2, tid3;
    pthread_create(&tid1, nullptr, active, (void*)"A");
    pthread_create(&tid2, nullptr, active, (void*)"B");
    //pthread_create(&tid3, nullptr, active, (void*)"thread-3");

    sleep(1);
    printf("Main thread ctrl begin...\n");

    while(true)
    {
        //printf("main wakeup thread...\n");
        pthread_cond_signal(&cond);
        //pthread_cond_broadcast(&cond);
        sleep(1);
    }

    pthread_join(tid1, nullptr);
    pthread_join(tid2, nullptr);
    //pthread_join(tid3, nullptr);
}